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Page "Carotene" ¶ 41
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two and primary
The experiments of Romagnosi and others have already been noted but no one had determined the cause-and-effect relationship between these two primary forces.
As stated in Seaboard and numerous other cases, the two primary reasons for the enactment of section 203 of the United States Code were to prevent the Government from having to deal with more than one claimant and to prevent the assignment of meretricious claims on a contingent-fee basis.
Wesley sees two primary pathways that could result in a permanent fall from grace: unconfessed sin and the actual expression of apostasy.
There were two forms of input and output: primary user input and output and an intermediate results output and input.
After selecting the landing site for Apollo 16, sampling the Descartes and Cayley formations, two geologic units of the lunar highlands, were determined by mission planners to be the primary sampling interests of the mission.
He points out that Shrine 261 is not strictly analogous to the Ark of the Covenant: it can only be said that the Anubis Shrine is " ark-like ", constructed of wood, gilded and gessoed, stored within a sacred tomb, " guarding " the treasury of the tomb ( and not the primary focus of that environment ), that it contains compartments within it that store and hold sacred objects, that it has a figure of Anubis on its lid, and that it was carried by two staves permanently inserted into rings at its base and borne by eight priests in the funerary procession to Tutankhamun's tomb.
This consumption grows during autumn and winter, or in the cold regions of the country ; there are two dates where consumption of chocolate infusions is traditional in the primary educational centres: 25 May and 9 July, that is, the two national dates of Argentina.
The town has one of the two Welsh-medium primary schools in Monmouthshire, Ysgol Gymraeg y Fenni, which was founded in the early 1990s.
During the two year absence of his father ` Abdu ' l-Bahá took up the duty of managing the affairs of the family, before his age of maturity ( 14 in middle-eastern society ) and was known to be occupied with reading and, at a time of hand-copied scriptures being the primary means of publishing, was also engaged in copying the writings of the Báb.
The 8051 microcontroller has two, a primary accumulator and a secondary accumulator, where the second is used by instructions only when multiplying ( MUL AB ) or dividing ( DIV AB ); the former splits the 16-bit result between the two 8-bit accumulators, whereas the latter stores the quotient on the primary accumulator A and the remainder in the secondary accumulator B.
The DH rule now constitutes the primary difference between the two leagues.
Canada is unusual among developed countries in the importance of the primary sector, with the logging and oil industries being two of Canada's most important.
There were two primary explanations put forth for the expansion of the universe.
The process is generally thought to involve two primary mechanisms: ( 1 ) hierarchical processing of sensory inputs, ( 2 ) memory.
Many cavers carry two or more sources of light-one as primary and the others as backup in case the first fails.
The primary purpose of the Council is to act as one of the two chambers of the EU's legislative branch, the other chamber being the European Parliament.
In these complexes, chlorophyll serves two primary functions.
Carotenes are found in plants in two primary forms designated by characters from the Greek alphabet: alpha-carotene ( α-carotene ) and beta-carotene ( β-carotene ).
File names in CTSS had two parts, a user-readable " primary name " and a " secondary name " indicating the file type.
Regarding mitotic chromosome structure, centromeres represent a constricted region of the chromosome ( often referred to as the primary constriction ) where two identical sister chromatids are most closely in contact.

two and isomers
For example, three isomers exist for cresol because the methyl group and the hydroxyl group can be placed next to each other ( ortho ), one position removed from each other ( meta ), or two positions removed from each other ( para ).
Xylenol has two methyl groups in addition to the hydroxyl group, and, for this structure, 6 isomers exist.
As a consequence, substituted alkenes may exist as one of two isomers, called cis or trans isomers.
For example, of the isomers of butene, the two methyl groups of ( Z )- but-2-ene ( aka cis-2-butene ) face the same side of the double bond, and in ( E )- but2-ene ( aka trans-2-butene ) the methyl groups face the opposite side.
These two isomers of butene are slightly different in their chemical and physical properties.
They observed 18 atoms of < sup > 262 </ sup > Bh and 3 atoms of < sup > 261 </ sup > Bh and confirmed the two isomers of < sup > 262 </ sup > Bh.
It needs to be mentioned also that two substituents on an atom may, in rare cases, be geometrical isomers.
It is so called because the two isomers are each optically active, that is, they rotate the plane of polarized light in opposite directions.
< sup > 149 </ sup > Dy has two metastable isomers, the second of which, < sup > 149m2 </ sup > Dy, has a half-life of 28 ns.
For diderivatives such as the toluidines, C < sub > 6 </ sub > H < sub > 4 </ sub >( NH < sub > 2 </ sub >)( CH < sub > 3 </ sub >), three isomers were observed, for which Kekulé proposed structures with the two substituted carbon atoms separated by one, two and three carbon-carbon bonds, later named ortho, meta and para isomers respectively.
The counting of possible isomers for diderivatives was however criticized by Albert Ladenburg, a former student of Kekulé, who argued that Kekulé's 1865 structure implied two distinct " ortho " structures, depending on whether the substituted carbons are separated by a single or a double bond.
Some minimal effect on thyroid hormone production however also comes with Propranolol-which has two roles in the treatment of hyperthyroidism, determined by the different isomers of propranolol.
In the Fischer projection, two mirror-image isomers differ by having the positions of all chiral hydroxyls reversed right-to-left.
In the Fischer projection, one of the two glucose isomers has the hydroxyl at left on C3, and at right on C4 and C5 ; while the other isomer has the reversed pattern.
However, the two isomers will always rotate the light in opposite directions, at the same rate.
Thus each open-chain monosaccharide yields two cyclic isomers ( anomers ), denoted by the prefixes ' α -' and ' β -'.
There are two methadone isomers that form the racemic mixture which is more common as it is cheaper to produce.
Two gyrotropic materials with reversed rotation directions of the two principal polarizations, corresponding to complex-conjugate ε tensors for lossless media, are called optical isomers.
The first known racemic mixture was " racemic acid ", which Louis Pasteur found to be a mixture of the two enantiomeric isomers of tartaric acid.
The isomers are distinguished by the designations ortho-( o -), meta-( m -), and para-( p -), which specify to which carbon atoms ( of the benzene ring ) the two methyl groups are attached.

two and β-carotene
β-Carotene is composed of two retinyl groups, and is broken down in the mucosa of the human small intestine by β-carotene 15, 15 '- monooxygenase to retinal, a form of vitamin A. β-Carotene can be stored in the liver and body fat and converted to retinal as needed, thus making it a form of vitamin A for humans and some other mammals.
Ltd., a subsidiary of the Germany-based company Cognis, is also producing β-carotene from microalgae grown in two sites in Australia that are the world ’ s largest algae farms.
There are currently two commonly used methods of total synthesis of β-carotene.
The two ends of the β-carotene molecule are structurally identical, and are called β-rings.
This proportion, they report, could be reduced by administration for two to three months of vitamin A or β-carotene or a mixture of the two.
One molecule of β-carotene can be cleaved by the intestinal enzyme beta, beta-carotene 15, 15 '- monooxygenase into two molecules of vitamin A.
In the molecule chain between the two cyclohexyl rings β-carotene cleaves either symmetrically or asymmetrically.

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